<form method="post" action="{:url('Topic/save')}">
    {include file="shared/_errors" /}
    {:token_field()}
    <textarea class="form-control" name="content" placeholder="分享下学习经验，聊聊生活趣事..." rows="8">{:session('old_topic')}</textarea>
    <div class="text-end mt-4">
        <button class="btn btn-sm btn-outline-success">
            <i class="fa fa-pencil-square"></i>
            发布
        </button>
    </div>
</form>